Integrity Bars & Plumbing Sleeves

[To Madeira]

Curious to see how others are handling situations where plumbing sleeves are interfering with integrity bars, particularly when there's limited scope to relocate the sleeves due to parking spaces.

 

[HTURKAK]

Curious to see how others are handling situations[/b] where plumbing sleeves are interfering with integrity bars,
.....]

I think this is flat slab system and the top reinf . clashing with plumbing sleeves..

I would simply REJECT the destruction of the main rebars which may compromise the safety of the structure. The plumbing people may choose a sleeve size ( rectangular if necessary) suitable to the spacing btw two bars.









Tim was so learned that he could name a
horse in nine languages: so ignorant that he bought a cow to ride on.
(BENJAMIN FRANKLIN )

 

[SWComposites]

exactly. learn to say "NO".

 

[Enable]

I'd be surprised if you were able to swing a plumbing relocation no matter how hard you pleaded. Every parking garage I have ever repaired has had stacks right at the column face for that exact reason. Like it or not it will get done that way and quite honestly if you lose parking for a plumbing stack that really defeats the purpose of a parking garage in the first place. Generally what I've seen is that integrity bars at these locations are placed on a slight angle or are bent and it's done with (when stacks are large). If you're feeling anal just extend face of the column to reduce parking width to absolute minimum and call the stalls "motorcycle spots".

HTURKAK: He's talking about integrity bar requirements over the column core (bottom bars) not the top reinforcing. These are not main reinforcing steel. They are more or less bars to help the slab hang there in case of a punching shear failure. See here.

BTW you should still be able to meet the requirement with straight bars unless you have an unusually small column.

 

[HTURKAK]

Thank you.. Learning has no age limit.. In this case i understand that it is necessary to write long answers . But it is not hard to guess if the plumbing sleeve interfering with integrity bars ,most probably it will clash with main rebars. The OP could provide the reinf. detail.

In my zone, some engineers do not show the locations of box-outs, holes for MEP then later, drilled with core drilling with disturbing the main ,integrity rebars . IMO , ( at least i preferred , thinking good practice ) to show the locations of holes , box outs and shift a little the reinf . as necessary.








Tim was so learned that he could name a
horse in nine languages: so ignorant that he bought a cow to ride on.
(BENJAMIN FRANKLIN )

 

[KootK]

Given the way in which integrity rebar is intended to function (caternary-ish), I would think that this would be okay so long as:

1) You're not actually losing any of the required bars and;

2) You've got your 2x development or whatever past the penetration.

My personal opinion, which is not supported by code, is that situations like this would be better off with:

a) The integrity reinforcing parallel to the long dimension of the column offset to the sides of the column and placed above the integrity bars running the other way.

b) The integrity reinforcing perpendicular to the long direction of the column designed to take 100% of the incoming demand from both directions.